PATHHardware Documentation > USB Devices > Mac OS USB DDK API Reference

USBExpertStatus

The USBExpertStatus function sends a general message out to the user. No weight is attached to this message by the operating system.



 
OSStatus USBExpertStatus (

                     USBDeviceRef ref,

                     void *pointer,

                     UInt32 value);

--> ref: Device reference for the device driver giving notification. The reference is for the purpose of displaying information only. Currently this reference is not validated.
--> pointer: A pointer to a string to display. This value is a P-string.
--> value: An arbitrary number to display.